baber/WOPTO huggingface dataset:
Patent GB-1345883-A (GB)
Title: Change-over element for changing over between series and parallel operation of gas turbine engines
IPC: F02C9/16
Filed: 1971-06-02
Abstract: 1345883 Gas turbine plant DAIMLER-BENZ A G 2 June 1971 [3 June 1970] 18659/71 Heading F1G The invention relates to a change-over element for use in a gas turbine engine whereby gas may be directed to flow either in series or in parallel between adjacent elements. The engine shown only in part in Fig.1 comprises an axial flow LP compressor 1 and a radial flow HP compressor 2, a change-over element 3 being disposed between the two compressors and comprising three parts - a first part 4 which is fixed, a second part 5 which is movable angularly and a third part 6 which is fixed. The first part 4 constitutes the stator casing of the LP compressor and also provides an air inlet 7. The second part 5 is mounted for angular movement on a flange 14 and is formed with a series of ducts. The third part 6 is formed with radial ducts 6 and with axial ducts 16 which are connected respectively with the air preheater not shown and with the HP compressor 2. The parts 4, 5, 6 are in sealed contact at 13. In the first position of the movable part 5 air from the LP compressor 1 flows to the duct 16 and thus to the HP compressor 2 this being the series flow arrangement. In the second position of the moveable part 5 air enters the inlet 7 of the fixed part 4 and passes to the duct 16 and thus to the inlet of the compressor 2 while air from the LP compressor 1 passes to the duct 6 and thence to the air preheater, this being the parallel flow arrangement. In Fig.2 the engine combustion equipment is shown at 19 and the compressordrive turbine at 18, the duct 37 communicating with a power turbine not shown, and the duct 38 communicating with a heat exchanger not shown. The change-over element again comprises fixed inlet and outlet parts and an angularly movable part 17 disposed therebetween. In the series flow arrangement the movable part 17 is disposed so that gases discharging from the compressor-drive turbine 18 pass to duct 37 and so to the power turbine not shown. In the parallel flow arrangement, the movable part 17 is disposed so that gases pass from the compressordrive turbine 18 to the duct 38 and so to the heat exchanger, and so that gases pass from the combustion equipment 19 through ducts 24, 21, 29, 37 direct to the power turbine not shown.
Patent GB-579178-A (GB)
Title: Device for producing or reproducing designs, scales or the like
IPC: B43L13/10
Filed: 1943-11-10
Abstract: 579,178. Engraving. KINGSTONUPON-HULL, CORPORATION OF THE CITY & COUNTY BOROUGH OF, and MELL, R. E. Nov. 10, 1943, No. 18668. [Class 100 (ii)] [Also in Groups XX, XXII and XXIV] A universally mounted bar 5 having a stylus 12 at its upper end and a marking point 8 or a cutter at its lower end is positioned vertically above a work-holding table 1, the upper end 9 of the bar being cranked to bring the stylus over the upper table 10 holding the original to be copied. The bar 5 moves in a pair of trunnioned slotted guides 20, 21, the heights of which can be independently adjusted on their supporting pillars 22. The pillars themselves may be carried on two relatively rotating rings 25 so that the horizontal angle between the slotted guides may be varied to alter the nature of the distortion produced. The circular table 1 is rotatably mounted on a carrier adapted to slide in two directions at right angles. The holder for the original 11 is mounted in slides on the table 10.
Patent GB-1184894-A (GB)
Title: Improvements in or relating to Combine Harvesters
Inventor: JARVIS JOHN STEVENS
IPC: A01F12/24
Filed: 1966-04-28
Abstract: 1,184,894. Combine harvesters. RANSOMES SIMS & JEFFERIES Ltd. 28 April, 1967 [28 April, 1966], No. 18712/66. Heading A1F. A combine-harvester concave, which is of generally arcuate shape and has a series of spaced transverse bars 5 with longitudinal wires 9 passing through them, is characterized in that, mounted on at least one of the bars 5 and extending rearwardly therefrom towards the next succeeding bar, there are provided transversely-spaced fingers 17, the lateral spacing between the fingers being substantially the same as that between the finger-ends and the next bar. In addition to the wires 9, bars 7 extend along the concave to stiffen it, the bars and wires preventing unthrashed material from escaping downwardly in the gaps between the finger-ends and the transverse bars 5,
Patent GB-964124-A (GB)
Title: Tools for applying pronged fastenings and other components
Inventor: BOSHIER MALCOLM STUART
IPC: A41H37/02
Filed: 1962-05-15
Abstract: 964,124. Hook and eye fastenings. THOMAS WALKER Ltd. May 6, 1963 [May 15, 1962; May 30, 1962; Aug. 10, 1962], Nos. 18733/62, 20883/62 and 30766/62. Heading A3H. [Also in Divisions B4 and F2] A fastener for a waistband comprises a hook H having three prongs 1, 2 and a back-plate 3, the prongs being pressed through the material and corresponding holes 1<SP>1</SP>, 2<SP>1</SP> in the plate and then bent over by means of a manually or automatically actuated apparatus (See Division B4). In the construction of Fig. 16, instead of the prongs being bent outwardly relative to each other, they are bent inwardly. The hook H Figs. 7, 8 is provided with two prongs only.
Patent GB-1466663-A (GB)
Title: Producing products from dry particulate material and a liquid
IPC: C04B40/00
Filed: 1973-04-18
Abstract: 1466663 Wetting concrete G MATTHEWS RESEARCH & DEVELOPMENT CO Ltd 2 April 1974 [18 April 1973] 18737/73 Heading B5A Dry particulate material (e.g. cement with granite, or quick setting plaster of Paris with exfoliated mica) is placed in a mould, and a vacuum applied to a first portion of the surface of the material to cause compaction. Liquid (e.g. water) is applied to a second part of the surface for drawing in by the vacuum. Further compaction does not occur after the liquid has been applied to the surface. As described for moulding concrete articles, a wetted filter paper is placed in each of an endless procession of pivotally interconnected moulds 20 (Fig. 3), to the base of each of which a vacuum is supplied by a pair of pipes 28. A hopper 48 containing a dry white cement, granite and colour pigment moves along with, and above, a first mould, moves down into the mould, and distributes the coloured cement &c. on the filter paper. The hopper 48 then rises and moves back to an initial position due to a counterweight 49, to repeat the feeding with successive moulds. As the moulds pass beneath a hopper 33, coloured or uncoloured dry cement and granite are sprinkled to fill the moulds, and the cement is levelled by a roller 60, while compacted by the applied vacuum. Water is sprayed from a pipe 64 (or flooded on from a filter cloth endless belt) and sucked into the cements, and excess removed, by the vacuum. As each mould base contacts a fixed rail, the vacuum is released from the contacting mould and replaced by a positive pressure that discharges the concrete article on to a pallet and carrier 66 (Fig. 7). The filter paper protects the concrete surface. The carrier moves along an inclined rail 68 to deposit the pallet on intermittently moving endless chains 70 (Fig. 3 also), and returns upwards with a fresh pallet to receive the next discharged article. One or both major surfaces of an article are textured or given an exposed aggregate finish. Moulds and vacuum.-Each mould 20 is open-topped and over its base receives in succession a wire or plastics mesh (or the base is channelled to define a grid), an apertured plate, the filter paper and a second apertured plate acting as a template to give an embossed surface to the concrete. The vacuum is applied to the bases of two moulds by pipes wound in opposition on a drum, and is fed to the remaining mould bases by interconnecting pipes. One of the drum wound pipes includes a concentric pipe leading to a positive pressure source. Hoppers.-The hopper 48 includes a wire mesh base and pattern plate through which material is fed by reciprocated scraper blades (51) (see Fig. 10, not reproduced). Hopper 33 includes an upstream outlet that sprinkles cement through a scalloped plate, to prevent disturbance of the coloured cement, and a downstream outlet that applies cement in bulk to fill the moulds.
Patent GB-1401597-A (GB)
Title: Hose reel device for exhausting gases
IPC: B08B15/00
Filed: 1973-04-18
Abstract: 1401597 Hose reels; gas exhausting device; spring drum apparatus B NEDERMANN 18 April 1973 [18 April 1972] 18777/73 Headings B8M and B8B A device for exhausting gases comprises a drum rotatably mounted in a frame, an outlet 3 coaxial with drum, connected to an extraction pump and fixed in relation to the frame, a hose wound on the drum and connected to the outlet 3 by a gas-tight joint, a spring 8 for rotating the drum to wind hose on to the drum, stops, e.g. 20 and 17, on the hose or frame for limiting the winding on of the hose, and a releasable lock for holding the drum against rotation, the releasable lock comprising spaced ratchet tooth segments 9 co-operating with a pawl 10 fixed to the frame. In operation the pawl 10 locks the drum against rotation in the winding on direction; rotation of the drum in the unwinding direction causes the pawl to ride over the ratchet teeth until it reaches a space between the segments 9. In the space between the segments the pawl is pivoted by the segment end to a position in which it rides over the teeth while the drum is rotated by the spring 8, preferably a spiral spring. When the drum is again rotated in the unwinding direction, the pawl is caused to rotate again to the operative position in which it locks the drum against rotation in the winding on direction. The drum itself may be gas-tight and the hose is, in this ease, secured to the surface of the drum in gas-tight manner. In a further embodiment, the hose passes through the drum and is secured to the outlet 3 in gas-tight manner. The stops limiting winding on of the hose may comprise a sleeve 20 on the hose co-operating with a roller 17 parallel to the drum at a distance from the surface thereof which permits passage of the hose but not of the stop 20. The device is particularly suitable for extraction of vehicle exhaust fumes, or welding gases and sparks, in which ease the connection between the hose and the outlet may comprise a filter and collection box and be made of heat-resisting material.
Patent GB-1042723-A (GB)
Title: Sinking shafts and apparatus therefor
Inventor: ZHADAEV VALENTIN GEORGIEVICH
IPC: B25D17/28
Filed: 1963-06-13
Abstract: 1,042,723. Drilling machine details. TSENTRALNY NAUCHNO-ISSLEDOVATELSKY INSTITUTE PODZEMNOVO SHAKHTNOVO STROLTELSTVA. Sept. 14, 1964 [June 13, 1963], No. 18806/63. Headings B3B and B3C. [Also in Divisions B4 and E1] An apparatus for sinking a shaft comprises a set of drills 10 fixed to a veritcal column 8 by means of link mechanisms 28, 29, enabling the drills to be fixed in relation to each other and in accordance with the required location of the holes. The drills 10 which may be percussion or rotary-percussion, are each carried by a link mechanism 28, 29, pivoted on a bar 30, the positioning of each drill being effected by a pneumatic cylinder 33. The bar 30 is attached to the extensible column 8 which can be attached to a carriage 17, Fig. 6 (not shown), by means of a roller 21 on a pivoted link engaging in a guide 19 on the carriage; the column may be extended by hydraulic, pneumatic or screw means. The carriage is provided with rollers 17a which run on a track 5 fixed in the Bhaft, the carriage being moved around the track 5 fixed in the shaft, the carriage being moved around the track via an arm 11 which is connected to a frame 1 pivoted at 6 on the track; the frame is driven by means of a drive 3, 4. In order to locate the carriage 17 in position for drilling a pair of pneumaticallyactuated plungers are provided on the arm 11 and adapted to be alternately engaged with holes located around the shaft. A driver's cab 7 is provided on the apparatus; alternatively, the apparatus may be controlled from the bottom of the shaft.
Patent GB-619232-A (GB)
Title: Improvements in or relating to gas turbine plants
IPC: F23R3/42
Filed: 1946-06-24
Abstract: 619,232. Gas turbines. LOMBARD, A. A. June 24, 1946, Nos. 18889 and 29570. [Class 110 (iii)] In a gas turbine plant of the type having an air compressor driven through a shaft by a gas turbine arranged coaxially with the shaft and compressor, and in which the combustion system comprises a number of flame tubes and at least one air casing, the combustion chambers or flame tubes are arranged with their axes skewed relative to the shaft axis so that they lie in a helical manner around the shaft. The said axes are preferably rectilinear, but may be of helical form. Air from a two-stage centrifugal compressor leaves a diffuser chamber 20 through stub pipes 26 in a substantially tangential direction and flows through helically disposed combustion chambers 21 to a gas turbine 14. Individual combustion chambers may be replaced by an annular air-casing housing helically disposed flame tubes, and the compressor may then be of the axial-flow type.
Patent GB-1387698-A (GB)
Title: 6alpha,9alpha-difluorosteroids of the pregnane series and processes  for their manufacture
IPC: A61K31/57
Filed: 1972-04-24
Abstract: 1387698 6α,9α-Difluoro-steroids CIBAGEIGY AG 24 April 1972 [23 April 1971] 18932/72 Heading C2U Novel steroids of the formula wherein R 1  is a free, esterified or etherified hydroxy group, R 2  is H(#OH) or =O, and R 3  is H or acryl, and the wavy line indicates either alpha or beta configuration for the 3-substituent, are prepared by reduction of the corresponding 3-ones or their 20-ketals, followed by removal of the ketal group if required and optionally by esterification or etherification of the 3-ols thusproduced, hydrolysis of a 17α-acyloxy group or esterification of a 17α-hydroxy group. Also, an 11#-ol may subsequently be oxidized to an 11-one and a 3-acylate may be hydrolysed. #<SP>4</SP> - 6α,9α - difluoro - 16α - methyl - 11#,17α- dihydroxy - 3 - oxo - 20 - ethylenedioxy - pregnene is prepared by hydrogenation of the corresponding #<SP>1,4</SP>-compound, in turn prepared by ketalization of the corresponding 20-one. The novel steroids are anti-inflammatory agents and also display thymolytic and antileukaemia action, and they may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-1483599-A (GB)
Title: Electrostatic precipitators
IPC: B03C3/47
Filed: 1974-12-09
Abstract: 1483599 Electrostatic precipitators PLESSEY CO Ltd 9 Dec 1974 [5 Nov 1973] 18995/76 Divided out of 1483598 Heading B2J  An electrostatic precipitator comprising a housing 16; a plurality of parallel precipitation electrode plates 19; fan means 33, 34, for causing air to flow between the plates e.g. 29; and linear conductor means 22 extending between the plates 29 in a direction parallel to the plates 29 and normal to the air flow, is characterised in that the housing 16 has at least one opening which allows the plates 29 to be removed, while leaving the conductor means 12 in the housing 16.  In Fig. 3 and Fig. 4 (not shown), preliminary ionisation is caused by a corona discharge wire 22, and two electrode assemblies 19 with alternate plates connected to negative and positive voltages are located on connectors 20, 21 respectively in the housing 16. In use, two doors e.g. 26, are closed, and fans 33, 34, cause air taken in through filters 35, 36 to flow between the plates e.g. 29, and via windows 37, 39 into a replaceable activated carbon filter panel 40 mounted in the outer face of the door 26. Fig. 1 (not shown) shows an embodiment with two electrodes in the form of earthed plates 1, 2, of e.g. aluminium or metallised cardboard or plastics, slidably mounted in plastics guides 3 and partially surrounding a corona discharge wire 5 of e.g. nickel chrome connected to a D.C. voltage of e.g. 5-10 kv. Either embodiment may include a safety arrangement to prevent the electrodes being touched while energised. Reference is made to the Parent Specification.
Patent GB-1195668-A (GB)
Title: Method for Closing the Toe of Stockings or Stocking Tights
IPC: D04B9/46
Filed: 1969-04-14
Abstract: 1,195,668. Knitting. TEXPATENT G.m.b.H. 14 April, 1969 [18 April, 1968; 20 June, 1968; 21 Oct., 1968; 17 Dec., 1968], No. 19017/69. Headings D1C and D1K. The toe of a stocking is closed by knitting in a thread which passes at least once round the periphery of the knitted tube, the thread then being pulled relatively to the tube so that the tube is constricted until an essentially closed toe is formed. The closing thread is eventually secured against withdrawal. For this purpose in order to close the toe a yarn guide 27 feeds a thread which is incorporated in the fabric, the feeding of thread from the guide being such that it passes via a clamp 52 both on being fed and on withdrawal of the thread. The loops of thread extending on the needle circle are then engaged by a hook 53 which when raised draws the thread taught and causes the tube to close. Subsequently a knotting bill of a knotting arrangement 54 engages the threads and ties a knot to prevent the thread from being pulled out. Alternatively a thread hooking arrangement may pull the thread to restrict the tube and effect toe closure whereupon the twisted thread may be glued welded or fused to secure it in its taut condition.
Patent GB-372996-A (GB)
Title: An improved flux for use in soldering metals
IPC: B23K35/36
Filed: 1931-07-01
Abstract: A flux for use in soldering aluminium, aluminium alloys, and other metals consists of Venice turpentine, capaba balsam, resin, and paraffin oil in specified proportions.  The turpentine and balsam are mixed and heated, melted resin is added, and, after cooling the mixture, the paraffin oil is finally added.
Patent GB-596351-A (GB)
Title: Improvements in or relating to yarn feeding devices
IPC: D04B15/38
Filed: 1945-07-25
Abstract: 596,351. Yarn feeding devices. HEMPHILL CO. July 25, 1945, No. 19052. Convention date, Aug. 5, 1944. [Class 120 (ii)] [Also in Group VIII] A yarn feeding device comprises a cylindrical cage 1 encircled by yarn 29 passing from a yarn stock to the work and means responsive to variation in yarn tension for varying the length of yarn wrapped round the cage so as to adjust the rate of feed. As shown, the cage 1, comprising heads 2, 3 connected by rods 4, is mounted on a power driven shaft 5 above which is aligned a freely mounted shaft 10 with a pin gear 15 that engages a pin gear 16. A rod 19 depending from the pin gear 16 as connected at its lower end to a take-up lever provided with a yarn guiding eyelet 22 through which the yarn passes to the work. When the yarn tension varies between the eyelet 22 and the work, the resultant upward or downward movement of the lever 21 imparts, through the rod 19, an anti clockwise or clockwise movement to the pin gear 16 and rotates the pin gear 15 so that a yarn guide 24-25, depending therefrom, moves circumferentially of the cage 1 to increase or decrease the extent of the wrapping.
Patent GB-767143-A (GB)
Title: Beta-naphthol
Filed: 1954-06-29
Abstract: Beta-naphthol is prepared by sulphonating naphthalene with sulphuric acid, blowing steam through the crude sulphonation mixture to form an acid mixture comprising essentially beta-naphthalene sulphonic acid, sulphuric acid and water, mixing the acid mixture with an alkali metal or alkaline earth metal hydroxide, carbonate or alkaline reacting salt in the presence of water, under vigorous agitation at a temperature of at least 90 DEG  C. and under at least the vapour pressure of the mixture to form a fluid alkaline-reacting suspension containing a beta-naphthalene sulphonic acid salt, and heating the resultant mixture under pressure to convert the beta-naphthalene sulphonic acid salt to beta-naphthol.  Specified alkali and alkaline earth metal compounds are the hydroxides, carbonates, bicarbonates, sulphites and bisulphites of sodium, potassium, magnesium, calcium and strontium.  Preferred compounds are sodium hydroxide and sodium sulphite or bisulphite.  When sodium sulphite and bisulphite are used, the sulphur dioxide which is evolved during the neutralization may be used to acidify the mixture from the hydrolysis of the sulphonic acid to liberate beta-naphthol.  The preferred temperature for the neutralization is 140-160 DEG  C. and the preferred pressure is above about 30 p.s.i.g.  A process is described wherein the steam treated sulphonic acid mixture is neutralized with a 25-60 per cent sodium hydroxide solution to give an alkaline mixture containing from about 2.0-2.8 mols. of free sodium hydroxide per mol. of sodium beta-naphthalenesulphonate.  The resultant fluid alkaline mixture is heated to about 300-370 DEG  C. to hydrolyse the sodium betanaphthalenesulphonate to sodium beta-naphtholate.  The hydrolysis mixture is diluted with water, filtered and neutralized, preferably with gaseous sulphur dioxide, although other acids are specified. The acidified mixture is heated to melt the beta-naphthol, the hot mixture being stirred and cooled to form granules of beta-naphthol which are filtered off.  The process may be operated continuously. In an example, a steamed sulphonation mixture is made alkaline with 50 per cent sodium hydroxide, hydrolysed at 360 DEG  C. for one hour and neutralized with sulphur dioxide.
Patent GB-837723-A (GB)
Title: Process for making cellular polymer bodies
IPC: C08J9/14
Filed: 1958-06-13
Abstract: Expanded polyolefine polymers and copolymers are obtained by using as volatile expanding agent 1,2-dichlorotetrafluoroethane. The polymers may be blended with acrylo-nitrile-butadiene rubbers, polychloroprene, polyisoprene, ethylene-vinyl acetate copolymers, or halogenated polyolefines.ALSO:A cellular polymer body is prepared by heating a normally solid polymer obtained by polymerising one or more aliphatic p  mono-olefines alone or in admixture with vinyl acetate, styrene, methyl methacrylate, tetrafluoroethylene or acrylonitrile, at heat-plastifying temperatures between 90 DEG  and 200 DEG C. in admixture with from 0,05 to 0,702 gram molecular preportion of 1, 2-dichlorotetrafluoroethane per 100 grams of the polymer, under pressure to form a flowable gel, and the gel is extruded into a zone of lower pressure wherein the extruded material expands with resultant formation of the cellular polymer body.  Specified olefines are ethylene, propylene, butene-1, pentene-1, 3-methylbutene-1,4-methyl-pentene-1,4-methyl hexene or 5-methylhexene-1.  The aliphatic olefine polymers can be modified by blending with polymeric materials such as acrylonitrile-butadiene rubbers, poly (2-chloro-butadiene-1, 3), polyisoprene, or ethylene-vinyl acetate copolymers.  Halogenated aliphatic olefin polymers may be employed.  Finely divided solid materials such as calcium silicate, zinc stearate and magnesium stearate may be incorporated with the polymer or gel prior to expanding, preferably in amounts from 0,1 to 2% by weight of the polymer, to aid in controlling the size of the cells.  According to an example solid granules of polyethylene with 1,5% by weight zinc stearate were fed at a rate corresponding to 30 lbs/hr. into an extruder comprising a four foot long barrel having a 2 1/2 inch diam. screw equipped with a mixing head and a sealing plate positioned midway of the screw.  The heat-plastified polyethylene was forwarded under pressure of the screw around the sealing plate into the second section wherein it was mixed with 1, 2-dichlorotetrafluoroethane fed in at a rate of 7,5 lbs./hr. The resulting mixture was brought to a temperature between 98 DEG  and 102 DEG C. and then forced through a discharge orifice of 1/8 by 1/2 inch cross-section into the atmosphere.  The product was a cellular body of about 1 by 2 inches cross-section and was composed of substantially uniform fine cells of approximately 0,7 mm. diameter.